Mechanic&#39;s pump oiler



Feb. 18, 1930. E. R. SYMONS 1,747,800

' MECHANICS PUMP OILER Filed Feb. 1 1927 ug un n t loveptor PatentedFeb. 18, 1930 UNITED STATES waste FICE MECHANICS PUMP OILER Applicationfiled February 14, 1927. Serial No. 168,092.

The invention relates to improvements in mechanics pump'oilers and anobject of the invention is to provide a container or can body of atruncated cone shape which improves the handling balance of the can andmakes the can non-tipping under ordinary workingconditions and furtherwhich permits of the use of a handle which will not stick out undulyfromthe body of the can.

A further object is to provide a mechanics pump oiler wherein all thepumping mechanism is demountable from the can body and to form thehandle in a simple, cheap and durable manner and such that it isdemountable with the pumping mechanism andforms also a fulcrum for theoperating lever.

A further object is to provide a simple and inexpensive operating leverwhich can be quickly put in place and which is positioned in regard tothe handle to allow of easy manipulation whetherthe hand be gloved orotherwise. 4 i V A further object is to provide an oiler with aninclined spout which can be quickly assembledand easily replaced ifnecessaryand which is attached to the pump plunger in a manner such thata strong oint can be made at such point. A further-object of theinvention is to provide a novel means for closing the lower ends of boththe cylinder and the plungerand further to provide an effective cheapand durable fastening for the intake pipe strainer and also an efiectiveand simple manner of providing a valve seat in such pipe.

With theab-ove more important and other minor objects in view which willbecome more apparent as the description proceeds, the invention consistsessentially in the arrangement and construction of parts hereinaftermore particularly described, reference being had to the accompanyingdrawing, in which:'

' Fig. 1 is'a vertical sectional view through the can body and partscontained therein, the upper parts being shown in side elevation.

Fig. 2 is a plan view of the device.

Fig. 3 is an enlarged detailed vertical sectional View centrally throughthe cylinder and plunger.

Fig. 4 is a horizontal sectional view at 4'l' Figure 3.

Fig. 5 is a horizontal sectional view at 5-5 Figure 3.

Fig. 6 is a view of the lower end of the intake pipe. I I

Fig. 7 is an enlarged detailed vertical sectional view at 77 Figure 1.

In the drawing like characters of reference indicate corresponding partsin the several figures.

The oil container or can body 1 is of a truncated cone shape, therebyproviding a com paratively wide bottom and a narrow top. The upper endof the body terminates in an upstanding screw threaded nipple 2 and thisreceives a closure cap 3.

Centrally to the cap I secure permanently a cylinder 4, the cylinderpassing through the cap and terminating a slight distance thereabove andhaving the lower end thereof cut at an angle of say forty-five degrees.The cylinder is formed from brass tubing. The lower end of the cylinderis closed by a plug 5 which is provided with a central opening 6 and abridge 7 crossing the inner side of the opening. The plug is die castand soldered to the cylinder.

Within the cylinder I mount slidably a plunger 8 which extendsconsiderably thereabove. The lower end of the plunger is formed with aninturned flange 9 and it carries the valve casing 10. This valve casingis also die cast and it will be here observed that the flange isimbedded in the material forming the casting, thus securely retainingthe casing and sealing the joints without soldering orjother means. I

Thevalve casing provides an interior oil passage 11 having an internalseat 11 atthe upper end thereof and the lower end of the valve casing isinteriorly screw threaded to receive the flanged brass screw 12 which isformed with an oil passage 13 and has the upper end thereof forming avalve seat 15. The lower end of the valve casing is provided with acircumscribing channel which receives an expansion ring 16. Thecustomary leather washer 17 is held in place on the lower end of thevalve casing by the screw engaging the bridge 12 and is expanded againstthe cylinder by the ring. A ball valve 18 is held normally seated on theseat 15 by a coiled spring 19 resting on the valve and having the upperend thereof engaging the seat 11. Through the upper end of the plunger Ipass a pin 20 which has the ends thereof projecting beyond the sides ofthe plunger to provide studs 21.

The handle 22 is formed from a single piece of wire bent centrally onitself and having the ends thereof terminating in inturned aligned pivotpins 23 and 24. Here it will be observed that the wire is shaped toprovide a convenient hand grip at one side of the can body and that theends of the wire straddle the upper end of the cylinder and rest on thecap 2 to which they are fastened by soldering. vAt the side remote fromthe hand grip, the ends of the wire are upturned so that the pins 23 and24 arein an elevated position relative to the cap. I

An operating lever 25 is also provided, this being formed from a singlepiece of wire bent in an elongated U-shaped manner and spanning theupper end of the plunger and having the ends thereof terminating inhooks 26 which receive the pins 23 and 24 and the body parts thereofmore or less centrally dented to provide semicircular pockets 27 adaptedto receive the stud like ends 21 of the pin 20.

A yoke 28 is secured to the cap, this being also formed from a singlepiece of wire bent in a Ushaped manner over the lever 25 and having theends thereof turned to provide foot pieces 29 which are also soldered tothe cap. It will be observed that the yoke is positioned at the sameside of the can as the handle and that it limits the up position of thelever 25 which latter it will be observed has the bow thereofoverhanging the upper end of the handle. A coiled spring 30 is placed onthe upper end of the plunger between the studs 21 and the cap andnormally holds the lever in the position best shownv in Figure 1.

To the upper end of the plunger I secure by soldering the lower end ofthe discharge spout 31 which it will be observed takes the inclinedposition as shown in Figure 1 and extends to the side of the can remotefrom the handle.

Into the opening 6 of the plug 5, I screw Said ring is frictionally heldin place and provides a seat for a ball valve 36. A spring 37 isinserted within the pipe and has one end resting on the latter ball andthe upper end 7 It will be particularly observed that the intake pipe isinclined at an angle of approximately forty-five clegrees and that thelower end thereof terminates adjacent the bottom of the can at the sideremote from the handle.

The operation of the device is as follows, assuming there is oil in thecan 1. The lever 25 is successively pressed down a few times and thiscauses a sufficient vacuum in the lower end of the cylinder to effectthe filling of the cylinder with oil, the oil passing up through theintake pipe past the valve 36 whichopens. Thereafter oil will alwaysremain in the lower end of the cylinder and the down pressing of thelever Will subsequently eifectthe discharge of oil through the spout,-the oil'passing upwardly through the passages 13 and 11 and past thevalve 18.

This oiler is particularly positive in its action and there is a goodstream and one is able to use it until practically all the oil has beenextracted from the can. The arrangement of the handle and the lever is avery convenient one and it permits the oiler to be operated underadverse conditions such as with a gloved hand, as the handle can be heldby the gloved fingers and the lever actuated by the thumb.

The design of theparts is extremely simple permitting of themanufacturing of the can at comparatively small cost and the arrangementis such that all parts can be readily inspected or dismounted andreplacements readily made. All the working parts are carried by the capso that they can be readily dismounted from the can body.

What I claim as my invention is 1. In combination, a screw threaded cap,a vertically disposed pumping mechanism passing therethrough and carriedthereby, an inclined oil inlet pipe communicating with the lower end ofthe pumping mechanism, an inclined discharge spout communicating withthe upper end of the pumping mechanism, the said discharge spout andintake pipe being contained in the same vertical plane and convergingtowards the pumping mechanism and a handle secured to the cap andcontained in the latter vertical plane and being positioned at the sideof the pumping mechanism remote from the spout.

2. In combination, a screw cap, a cylinder secured to and extendingthrough the cap, a plunger slidably mounted in the cylinder andextending thereabove, diametrically opposing studs carried by theplunger, a handle secured permanently to the cap and extendedtherebeyond to provide elevated pivot pins, an operating leverstraddling the plunger and ridingthe studs and having one end thereofpivotally mounted on the pivot pins and the other end overlying thehandle, a yoke permanently secured to the cap and passing over thelatter end of the lever and limiting its uppermost position and a coiledspring mounted on the plunger and positioned between the studs and thecap.

3. In combination, a screw cap, a cylinder carried thereby and extendingtherethrough, a plunger slidably mounted in the cylinder and projectingthereabove, a handle permanently attached to the cap and'formed from asingle piece of wire bent to form a hand grip, to straddle the upper endof the cylinder and to provide elevated pivot pins at the side of theplunger remote from the hand grip, a pair of studs carried by the upperend of the plunger, an operating lever formed from a single piece ofwire bent in a substantially U-shaped manner to straddle the upper endof the plunger and cross the studs and having the ends thereof hooked toreceive the pivot pins, a coiled spring surrounding the plunger andinterposed between the studs and the cap and a yoke secured to the capand formed from a single piece of wire bent to straddle the lever and toprovide foot pieces attached to the cap.

4. In an oil can pump, in combination, a vertical pump a cylinder havingthe lower end thereof terminating in an oblique plane, an inclined plugpermanently closing the lower end of the cylinder and provided with acentral screw threaded opening and a bridge thereacross, an inclinedintake pipe screw threading into the opening, a valve seat providedwithin the pipe, a ball valve normally engaging the seat and a coiledspring interposed between the bridge and the valve.

5. In an oil can pump, in combination, a vertical pump cylinder havingthe lower end thereof terminating in an oblique plane, an inclined plugpermanently closing the lower end of the cylinder and provided with acentral screw threaded opening and a bridge there across, an inclinedoil intake pipe screw threading into the opening, a valve seat containedwithin the pipe and formed from a short length of tubing frictionallyheld in place, a ball valve normally seating on the valve seat and acoiled spring interposed between the ball valve and the bridge.

6. In an oil can pump, a tubular plunger having the lower end thereofinwardly flared and a valve casing die cast on the lower end of theplunger and having the flanged end of the plunger imbedded in thecasting.

Signed at Rocanville, Saskatchewan, this 22nd day of January, 1927.

ERNEST R. SYMONS.

